TY - JOUR
T1 - Stability recovery performance in adults over a wide age range: A multicentre reliability analysis using different lean-and-release test protocols.
AU - Werth, Julian
AU - Epro, Gaspar
AU - Karamanidis, Kiros
PY - 2021/6/24
Y1 - 2021/6/24
N2 - The ability to effectively increase the base of support is crucial to prevent from falling due to stability disturbances and has been commonly assessed using the forward-directed lean-and-release test. With this multicentre study we examined whether the assessment of stability recovery performance using two different forward lean-and-release test protocols is reliable in adults over a wide age range. Ninety-seven healthy adults (age from 21 to 80 years) were randomly assigned to one out of two lean angle protocols: gradual increase to maximal forward-lean angle (maximal lean angle; n = 43; seven participants were excluded due to marker artefacts) or predefined lean angle (single lean angle; n = 26; 21 participants needed to be excluded due to multiple stepping after release or marker artefacts). Both protocols were repeated after 0.5 h and 48 h to investigate intra- and inter-session reliability. Stability recovery performance was examined using the margin of stability at release (MoS ) and touchdown (MoS ) and increase in base of support (BoS ). Intraclass correlation coefficients (confidence intervals at 95%) for the maximal lean angle and for the single lean angle were respectively 0.93 (0.89-0.96) and 0.94 (0.89-0.97) in MoS , 0.85 (0.77-0.91) and 0.67 (0.48-0.82) in MoS and 0.88 (0.81-0.93) and 0.80 (0.66-0.90) in BoS , with equivalence being revealed for each parameter between all three measurements (p < 0.01). We concluded that the assessment of stability recovery performance parameters in adults over a wide age range with the means of the forward lean-and-release test is reliable, independent of the used lean angle protocol. [Abstract copyright: Copyright © 2021 Elsevier Ltd. All rights reserved.]
AB - The ability to effectively increase the base of support is crucial to prevent from falling due to stability disturbances and has been commonly assessed using the forward-directed lean-and-release test. With this multicentre study we examined whether the assessment of stability recovery performance using two different forward lean-and-release test protocols is reliable in adults over a wide age range. Ninety-seven healthy adults (age from 21 to 80 years) were randomly assigned to one out of two lean angle protocols: gradual increase to maximal forward-lean angle (maximal lean angle; n = 43; seven participants were excluded due to marker artefacts) or predefined lean angle (single lean angle; n = 26; 21 participants needed to be excluded due to multiple stepping after release or marker artefacts). Both protocols were repeated after 0.5 h and 48 h to investigate intra- and inter-session reliability. Stability recovery performance was examined using the margin of stability at release (MoS ) and touchdown (MoS ) and increase in base of support (BoS ). Intraclass correlation coefficients (confidence intervals at 95%) for the maximal lean angle and for the single lean angle were respectively 0.93 (0.89-0.96) and 0.94 (0.89-0.97) in MoS , 0.85 (0.77-0.91) and 0.67 (0.48-0.82) in MoS and 0.88 (0.81-0.93) and 0.80 (0.66-0.90) in BoS , with equivalence being revealed for each parameter between all three measurements (p < 0.01). We concluded that the assessment of stability recovery performance parameters in adults over a wide age range with the means of the forward lean-and-release test is reliable, independent of the used lean angle protocol. [Abstract copyright: Copyright © 2021 Elsevier Ltd. All rights reserved.]
KW - Stability recovery stepping
KW - Reliability
KW - Stability performance
KW - Falls
KW - Lean-and-release test
U2 - 10.1016/j.jbiomech.2021.110584
DO - 10.1016/j.jbiomech.2021.110584
M3 - Article
SN - 1873-2380
SP - 110584
JO - Journal of Biomechanics
JF - Journal of Biomechanics
ER -